Window casing



April 1941- w. w. STEVENSON 2.237.609

WINDOW CASING F iled March 28, 1939 3 Sheets-Sheet l J {a .5 J

A iiorneys W. W. STEVENSON WINDOW CASING April 8, 1941.

Filed March 28, 1959 3 Sheets-Sheet 2 jf za April 1941- w. w. STEVENSON 2.237.609

WINDOW CASING Filed March 28, 1939 3 Sheets-Sheet 3 Patented Apr. 8, 1941 UNITED STATES PATENT OFFICE WINDOW CASING Winfield W. Stevenson, Somers Point, N. 3'.

Application March 28, 1939, Serial No. 264,631

3 Claims.

My invention relates to improvements in window casings, the primary object in view being to provide a knock-down sectional casing adapted to be set up with a minimum of time and labor into a composite unit with all sections secured in place without nails, screws, or bolts, and which when set up is absolutely leak proof.

To the accomplishment of the above, and subordinate objects presently appearing, a preferred embodiment of my invention has been illustrated in the accompanying drawings, set forth in detail in the succeeding description and defined in the claims appended hereto.

In said drawings:

Figure 1 is a view in vertical central section of the preferred embodiment of my invention,

Figure 2 is a fragmentary view in front elevation,

Figure 3 is a similar View in rear elevation partly in section,

Figure 4 is a view in perspective of one of the side sections,

Figure 5 is a fragmentary view in vertical section taken through the joint between said side section and the bottom section,

Figure 6 is disassembled, fragmentary view in perspective of said side section and the top and bottom sections, and t Figure 7 is a fragmentary view of the stool cap section inverted.

Referring to the drawings by numerals, the

window casing of my invention, in the illustrated embodiment thereof comprises, as its main elements, a bottom section I, duplicate side sections 2, only one of which is shown and designated 2, I

a top section 3, a stool cap section 4 and a water cap section 5.

The bottom section I provides the sill member which, with the exceptions presently noted, is of the usual form. The side sections 2 comprise a side stile 6, having extending fiat along the outer edge thereof a side blind stop strip 1. The blind stop strip 1 extends beyond the inner face of the side stile 6 to provide the outer sash guide 8 and also extends at its lower end, as at 3, below the lower end of the side stile 6 on the outer side thereof to fit edgewise flush against one end of the bottom section I. The described blind stop strip 1 is secured to the outer edge of the side stile B by a tongue and groove connec- Y tion, as at It], and has suitably secured on the outer face thereof a vertical molding strip Ii beveled at its top to fit a corresponding end of a transverse mold strip [2 forming part of the top section 3 and presently described in greater detail. The side stile B is rabbeted across its lower end on the outer side of the stile to provide a narrow tenon l3 and similarly rabbeted along its inner edge to within a short distance of the upper end of the stile to provide a side bead It for plaster ground. The usual inner sash guide strip 15 is detachably secured in any suitable manner to the inner face of said bead it. Also the usual parting strip I6 is secured to the inner face of the side stile B to form together with stops 8 and I4 the usual upper'and lower sash runways. As best shown in Fig. 4 the inner sash guide strip M and the parting strip [6 terminate at the upper ends equidistantly from the upper ends of the side stile 6.

The upper face of the bottom section I slants downwardly towards its front, or outer, edge and is stepped downwardly along said edge, as at H. The lower ends of the strips 8, l4 and I6 terminate the latter below the former so as to fit flush with said upper face of the bottom section I and the lower end of the molding strip ll extends below said strips It so as to fit flush against the edge I! of said section I.

The described side stiles 6 are designed to be jointed to the bottom section I by means adjacent opposite ends of said section I as follows: The tenon [3 of each side stile ii is adapted to fit downwardly into a mortise slot, as at Iii, one of which is provided in the bottom section 1 adjacent each end and in. the top thereof to eX- tend from the inner edge of said section to within a short distance of the stepped edge IT. A pair of grooves 19 are provided in opposite sides of each tenon 113, respectively, extending longitudinally across the same in parallelism and designed in the fitted position of said tenons to mate with a pair of similarly extending grooves provided in the side walls of the mortise slot iii. A pair of round key pins 2| adapted to be driven into the mating grooves 19, 2B of each tenon l3 and mortise slot I8 detachably secure the tenons in said slots. As best shown in Fig. 4, the grooves l9 and pins 2| extend clear across each tenon l3 whereby a strong joint is provided.

To secure the stool cap section 4 on the bottom section I, said cap is provided with a ledge 22 extending along its outer upper edge and of a length adapting the same to fit between the side stiles 6, whereby said stool cap section may be fitted over the inner edge of the bottom section I, said ledge 22 being shorter, the section 4 being longer than the ledge 22 so that the ends 23 of the section extend beyond the side sections 2 as is usual. The inner sash stops l4 bear at the lower ends thereof on the ledge 22 and thereby secure the stool cap section to the bottom section I. The ledge 22 is keyed to the bottom section I by means of a longitudinally extending tongue 24 on the underside of the ledge fitting into a complemental groove 25 provided in the top of said bottom section I. The ends 23 of the stool cap section 4 are cut out on the underside thereof to provide pockets 26 for receiving the heads of the pins 2!.

The top section 3 forms the header 2'! fitting between the upper ends of the side stiles ii and behind the part of the blind stop strip forming the outer sash guide 8. The top section 3 embodies, as a component part thereof, a top blind stop strip 23 fitting between the upper ends of the side blind stop strips 1 as best shown in Figs. 2 and 3, and secured to the outer edge of said header 21 by a longitudinally extending tongue and groove connection 29. The blind stop strip 28 extends below the header 2? to provide the top outer sash guide 30. On the outer side thereof said strip 28 has suitably secured thereto the beforementioned transverse mold strip 52 which is surmounted by the water cap section suitably secured thereto. The ends of the strip l2 together with the ends of said cap section 55 extend into overlying flush engagement with the outer sides of the blind stop strips 1, whereby, as will be seen by virtue of said ends and the ends of the header l the top section 3, at its end, spans the inner edges of the side blind strips 7 thereby interlocking said section and strips 7 together but permitting removal of said top section 3 vertically.

The top section 3 is jointed to the side sections 2 by keyed mortise and tenon joints similar to that described with reference to the side stiles 6 and bottom section i. In this case the header 2'! is rabbeted from its top along its ends and inner side edge to provide horizontal and tenons one of which is shown at 32 in Fig. 6 extending across the ends of the header, and a bead 33 extending along the inner edge of said header for plaster ground. The side stiles 6 are slotted transversely, as at 34, on the inner faces thereof at the level of the upper ends of the beads M to receive the tenons 32, so that the bead corners, or in other words the corner provided by the juncture of the bead 33 and tenons 32 fit flush on the upper ends of the side beads M. The tenons 32 are each grooved, as at 32', along the top and bottom faces thereof, said grooves extending clear across the tenons and the bead 33, and the upper and lower walls of the slots 34, are provided with grooves 35 therein mating with the grooves 32. A pair of round key pins 36 are driven into the mating grooves 32, 35 said pins extending across the tenons to the blind stop strips 1.

The bead 33 of header 27 has suitably secured to the under face thereon an inner sash guide strip 3'! bridging the upper ends of the sash guide strips I5 in the usual manner.

As will now be seen, my invention provides a window casing formed of-four sections only, towit: the bottom section l, the side sections 2, the top section 3 and the stool cap section 4, which may be quickly interlocked to assemble the sections into casing form and readily disassembled at will, said sections when assembled being interlocked in a manner such as to preclude leakage around the casing and providing for the requisite rigidity of the various sections.

The invention will, it is believed, be readily understood from the foregoing both as regards the structural features, and the manner in which the sections are assembled and disassembled.

Manifestly the invention, as described, is susceptible of modification without departing from the inventive concept and right is herein reserved to such modifications as fall within the scope of the subjoined claims.

What I claim is:

1. A window casing comprising a pair of side sections including side stiles, and side blind stops extending along the outer edges of said stiles, said stops having side edges extending inwardly of said casting past said stiles and forming rightangled ledges on the latter, and a unitary top section including a top blind stop fitting endwise between said ledges, a header on one side of said top blind stop, and a molding strip on the other side of said top blind stop, the molding strip extending beyond the ends of the blind stop into overlapping relation to the outer faces of the side blind stops, and the header extending beyond the ends of said top blind stop into overlapping relation to the rear faces of said ledges, whereby-said sections interlock with said side blind stops against lateral movement.

2. A window casing comprising a pair of side sections including side stiles, and side blind stops extending along the outer edges of said stiles, said stops having side edges extending inwardly of said casing past said stiles and forming rightangled ledges on the latter, and a unitary top section including a top blind stop fitting endwise between said ledges, a header on one side of said top blind stop, and a molding strip on the other side of said top blind stop, the molding strip extending beyond the ends of the blind stop into overlapping relation to the outer faces of the side blind stops, and the header extending beyond the ends of said top blind stop into overlapping relation to the rear faces of said ledges, whereby said sections interlock with said side blind stops against lateral movement, said stiles having transversely extending mortise slots in the inner faces thereof closed at the outer ends thereof by said ledges and said header having reduced ends forming tenons fitting into said slots, the top and bottom walls of said slots being longitudinally grooved, and said tenons having top and bottom grooves therein complemental to the grooves of said slots, and key pins removably fitted in the complemental grooves of said slots and tenons and extending across said stiles to said ledges whereby said top section is securely locked to said stiles against endwise and vertical play and said pins are retained in said grooves against working outwardly of the same.

3. A window casing comprising a pair of side sections, including stiles, and side blind stops extending along the outer edges of said stiles, said stops having side edges extending inwardly of said casing past said stiles and forming right angled ledges on the latter, and a unitary top section including a top blind stop fitting endwise between said ledges, a header on one side of said top blind stop, and a molding strip on the other side of said top blind stop, the molding strip extending beyond the ends of the blind stop into overlapping relation to the outer faces of the side blind stops, and the header extending beyond the ends of said top blind stops into overlapping relation to the rear faces of. said ledges, whereby said sections interlock with said side blind stops againstlateral movement, said stileshaving transand extending across said stiles whereby said top section is securely locked to said stiles against endwise and vertical play and said pins are retained in said grooves against working outwardly of the same.

VVINFIELD W. STEVENSON. 

